Steps For Creating Action Potential

Question 1

2.

Answer 1

Na+ channels open & Na+ rushes into cell

Question 2

3.

Answer 2

Membrane potential goes from -70mV to +30mV

DEPOLARIZATION

Question 3

4.

Answer 3

The sudden change causes K+ channels to open & Na+ channels close

Question 4

5.

Answer 4

K+ rushes out of the cell & shifts the membrane potential back to -70mV
REPOLARIZATION

Question 5

6.

Answer 5

K+ channels close & membrane returns to resting via Na+/K+ ion exchange pump
HYPER POLARIZATION
~when it goes under -70mV and the resets itself

Question 6

1.

Answer 6

Stimulation